<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>LOGO</title>
  <link href="./style.css" rel="stylesheet">
  <link href="//at.alicdn.com/t/font_2159878_yjvny0fk3dr.css" rel="stylesheet">
</head>
<body>
  <div class="box">
    <i class="iconfont icon-apple logo"></i>
  </div>
</body>
<style>
    *{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: #000;
}
.iconfont.logo{
  position: relative;
  color: #fff;
  font-size: 5em;
  text-shadow: 0 0 50px #0f0,
              0 0 100px #0f0,
              0 0 150px #0f0,
              0 0 200px #0f0,
              0 0 250px #0f0;
  animation: animate 5s linear infinite;
}
@keyframes animate{
  0%{
    filter: hue-rotate(0deg);
  }
  100%{
    filter: hue-rotate(360deg);
  }
}
</style>
</html>